Delirium

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DeliriumEmotional or personality changes Movements triggered by changes in the nervous system (psychomotor restlessness) Changes in motor activities, movement (for example, may be lethargic or slow moving)Decrease in short-term memory and recall Alertness may vary, usually more alert in the morning, less alert at night (see drowsiness)Altered sleep patterns, drowsinessAltered level of consciousness or awarenessChanges in sensation and perception (increases the disorientation)Disorientation to time or place Disorganized thinking, evidenced by Attention disturbance Delirium is a condition of severe confusion and rapid changes in brain function. Delirium involves a rapid alternation between mental states (for example, from lethargy to agitation and back to lethargy), with attention disruption, disorganized thinking, disorientation, changes in sensation and perception, and other symptoms.Concentration problems Inability to maintain goal directed, purposeful thinking or behavior Inability to stop speech patterns or behaviors Incoherent speech May come before illusions or hallucinations Unable to remember past events (retrograde amnesia) Unable to remember events since onset of delirium (anterograde amnesia) Irritability Euphoria Depression Apathy Anger Anxiety